Statistical analysis and transient simulation New features VerifEye and QuickEye provide statistical analysis and fast convolution simulation capabilities that allow engineers to rapidly characterize high-speed serial channels, but they can be used for single-ended architectures as well.

Time-domain simulation using frequency-domain S-parameters Nexxim's inherent advantages in speed and capacity are enhanced with automatic enforcement of passivity and causality to accurately model and simulate physical behavior in the time domain (such as that of complex interconnects in signal integrity applications). To address the problem of passivity enforcement for large port count, non-passive S-parameter based models; Nexxim includes a "Passivity by Perturbation" option. Nexxim also includes a patent pending "TWA" algorithm. "TWA" will dramatically speed up the State Space fitting procedure often by orders of magnitude. State Space model generation is a critical need for time domain S-parameter simulation.

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Consistency of results across domains Time-domain (transient) and frequency-domain (harmonic balance, AC) simulations are performed using the same circuit netlist and the same device models across analyses, guaranteeing that results in the different domains are consistent.

Higher capacity at increased simulation speed Cutting-edge numerical algorithms and software engineering provide Nexxim with the capacity and speed to handle simulation of high-performance SI and RF devices that have very large transistor/device counts and high harmonic content without sacrificing simulation accuracy.

Robust convergence Nexxim includes robust algorithms across all analysis domains (DC, time and frequency) that ensure convergence even as circuit size, harmonic content and circuit nonlinearities increase.